San Jorge, Porphyry copper deposit

San Jorge

Porphyry copper (Cu-Au) deposit in Mendoza, Argentina

Names and other identifiers

GMRAP ID	333
Tract name	Argentina Permian San Jorge (005pCu1016ab)
Site status	deposit

Geographic location

Country	Argentina
State or province	Mendoza
Geographic location	-69.433333333, -32.25 (click for info)
Geologic map unit	-69.433333333, -32.25
Nearby data	List Map

Geologic information

Deposit type	Porphyry copper
Deposit subtype	Cu-Au
Age (Ma)	260Ma
Age determination method	K-Ar, mid-point
Age range	263 ±6 to 257 ±5 Ma
Age reference	Williams and others (1999)
Minerals	Ag-tellurides, apatite, arsenopyrite, azurite/malachite, biotite, bismuth, bismuthinite, bornite, brochantite, calcite, chalcocite, chalcopyrite, chlorite, chrysocolla, copper, covellite, cubanite, cuprite, delafossite, epidote, galena, gold, gypsum, kaolinite, limonite, mackinawite, malachite, marcasite, molybdenite, neotocite, pyrite, pyrrhotite, rutile, sericite, sphalerite, telurobismuthite, tenorite, tourmaline
Associated rocks	andesite porphyry, breccia, granodiorite porphyry, ignimbrite, andesite, conglomerate, granite porphyry, greywacke, mudstone, sandstone, shale, siltstone
Tectonic setting	continental margin
Stratigraphic age	Middle Permian–Late Permian

Commodity and development information

Development status	Prospect
Major commodities	Cu, Au
Tonnage (Mt)	268Mt
Cu grade (%)	0.45%
Au grade (g/t)	0.45g/t
Contained copper	1,200,000t
Gold-Moly ratio	-9999

Reference information

Comments	Updated tonnage and grade data from Coro Mining Corp. (2010). 60% of the deposit area is covered by alluvium and colluvium. 0.25% Cu cut-off.
Study area name	Andes
References	Coro Mining Corp. (2010); Lumina Copper Corp. (2004b); Northern Orion Explorations Ltd. (2000); Sillitoe (1977); Williams and Madrid (1999); Williams and others (1999); Singer and others (2008)
Site reference	Cunningham and others (2008)

Coro Mining Corp., 2010, San Jorge: Coro Mining Corp. Web page accessed 2010, at http://www.coromining.com/s/SanJorge.asp.

Lumina Copper Corp., 2004b, San Jorge property: Lumina Copper Corp. press release, March 2, 2004, accessed 2008, at http://www.luminacopper.com/s/SanJorgeProperty.asp. [Web page no longer available.]

Northern Orion Explorations Ltd., 2000, Annual report: Northern Orion Explorations Ltd. Annual Report, accessed 2008, at http://www.northernorion.com/s/NewsReleases.asp?ReportID=11598. [Web page no longer available.]

Sillitoe, R.H., 1977, Permo-Carboniferous, upper Cretaceous, and Miocene porphyry copper-type mineralization in the Argentinean Andes: Economic Geology, v. 72, p. 99109. (Also available at http://dx.doi.org/10.2113/gsecongeo.72.1.99.)Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the worldDatabase and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, [45] p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/.

Williams, W.C., and Madrid, J., 1999, El porfiro cuprifero San Jorge, Mendoza, in Zappettini, E.O., ed., Recursos minerales de la Republica Argentina: Buenos Aires, Instituto de Geología y Recursos Minerales (SEGEMAR), Anales 35, p. 797808.

Williams, W.C., Meissl, E., Madrid, J., and de Machuca, B.C., 1999, The San Jorge porphyry copper deposit, Mendoza, ArgentinaA combination of orthomagmatic and hydrothermal mineralization: Ore Geology Reviews, v. 14, p. 185201. (Also available at http://dx.doi.org/10.1016/S0169-1368(99)00006-2.)